Biology High School

which two pieces of evidence would support the idea that Pangaea once existed?

Answers

Answer 1

Answer:

a & c

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Related Questions

¿Qué receptores se estimulan al oler la rosa? Explica el proceso a través del cual se percibe el aroma de la rosa.

Answers

Answer:

receptores olfativos especializados localizados en el epitelio olfatorio de la mucosa nasal

Explanation:

Las neuronas receptoras del olor se denominan receptores olfatorios. Los receptores olfatorios son células especializadas capaces de percibir miles de sustancias químicas diferentes y decodificar la información en miles de olores distintos. Estos receptores se localizan en la mucosa nasal de las fosas nasales. En el caso del olor a rosa, como así también cualquier otro olor, las sustancias químicas responsables del olor se dirigen al epitelio olfatorio de la mucosa nasal, donde se unen a receptores específicos localizados sobre filamentos sensoriales (cilios) en las membranas celulares de las neuronas especializadas. La unión desencadena una respuesta en la células neuronales, es decir, una descarga eléctrica que se propaga desde las fosas nasales hasta el cerebro, el cual decodifica la información (el olor) en una región conocida como bulbo olfatorio.

Which mealworm behaviors were reflexes

Answers

Being hungry or having a dry mouth is an instinctive behavior in humans. 2 Which mealworm behaviors were reflexes? Why? The ones where the mealworm was touched by feathers or metal pins were reflex behaviors, because they were a stimulus, and the mealworm had no control over its reaction.

3. The picture on the right shows the sequence of nitrogen bases on part
of a DNA strand. Which string of letters below represents the nitrogen
bases in the order they would pair up with this part of the DNA strand?
A. C-T-G-C-A
B. G-A-C-G-T
C. A-G-T-A-C
(the picture is T-C-A-T-G)

Answers

Answer: C

Explanation: Thymine pairs with Adenine and Cytosine pairs with Guanine.

Chytrids have some unique characteristics that are different from the other groups of fungi. What characteristics make them unique? Check all that apply.

Their spores are produced in sac-shaped structures.
Their spores are produced in club-shaped structures.
Their reproductive cells have flagella.
Their reproductive cells have several nuclei.
They live in wet places.
They live in dry places.

Answers

Answer:

3 & 5 or C & E

Explanation:

❌ Their spores are produced in sac-shaped structures.

❌Their spores are produced in club-shaped structures.

✔ Their reproductive cells have flagella.

❌ Their reproductive cells have several nuclei.

✔ They live in wet places.

❌ They live in dry places.

edge 2021

Answer:

3 & 5 or C & E

Explanation:

✔ Their reproductive cells have flagella

✔ They live in wet places.

Time4Learning

What soil horizon is the most important for the growth of plants (agriculture) ?

Answers

Accumulative

the accumulative or B horizon is the most fundamental part of soil from many standpoint

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Due to altitude, you might find snow here during the summer months.

A) By a lake
B) In the forest
C) In the ocean
D) On a mountain

Answers

Answer:

Explanation:

Since the temperature is colder at a higher altitide you can use that knowledge to think about how high these places are relative to eachother. You can then take the highest one for your answer

D

Higher up it is colder

List 5 ways that phosphorous is essential to plants & animal life on Earth.

Answers

Answer:

El fósforo (P) es esencial en todas las formas de vida conocidas, dado que constituye un elemento clave en muchos procesos fisiológicos y bioquímicos. Se trata de un componente presente en todas las células de todos los organismos vivos. El fósforo aparece en estructuras complejas de ADN y ARN que, al contener y codificar la información genética, controlan todos los procesos biológicos en las plantas. Además, el fósforo es un componente fundamental del sistema de transporte de energía en todas las células.

El fósforo no aparece aislado en la naturaleza, sino que se encuentra siempre combinado con otros elementos con los que forma los fosfatos que pueden ser muy complejos y presentarse bajo distintas formas en los suelos, el agua, las plantas, los animales y el hombre. Por tanto, se utilizará la palabra “fósforo” de forma genérica en lugar de identificar el fosfato concreto, aunque en la mayoría de los casos, se ofrecerán valores numéricos como P2O5 .

Hasta una época relativamente reciente, el crecimiento de las plantas y de los animales, y por extensión, la productividad de la agricultura, se veían limitados por la falta de fósforo, ya que anualmente solo se disponía de unas pequeñas cantidades de las rocas y de los minerales del suelo gracias a la acción erosiva de los elementos. Cuando los agricultores comenzaron a utilizar fertilizantes en el siglo XIX, los niveles de fósforo disponible para las plantas en muchos suelos eran todavía muy bajos. Por eso, hasta que no se comenzó a aplicar fósforo, la respuesta a otros nutrientes, especialmente al nitrógeno, era muy pequeña, es decir, que el fósforo era el nutriente limitante del crecimiento de las cosechas.

El fósforo desempeña un papel fundamental en la fotosíntesis, proceso por el que las plantas absorben la energía del sol para sintetizar moléculas de carbohidratos, es decir, de azúcares, que son transportados a los órganos de almacenamiento de las plantas. Este proceso es esencial para todas las formas de vida y constituye el primer paso en la cadena para producir alimentos, piensos y fibras.

Las raíces de las plantas absorben el fósforo del agua presente en el suelo y que se denomina solución acuosa del suelo.

Sin embargo, los compuestos de fósforo no son muy solubles y, como consecuencia, la cantidad de fósforo que la planta puede tomar de la solución acuosa del suelo tiende a ser mucho menor de la que necesita, especialmente cuando la planta se encuentra en un periodo de fuerte crecimiento. Por eso, el fósforo de la solución acuosa del suelo debería reponerse con una frecuencia de diez veces al día en esos periodos.

En un día, una cosecha de rápido crecimiento puede absorber el equivalente a cerca de 2,5 kg de P2O5 por hectárea (una hectárea equivale a 10.000 m2 ). De esto se deduce, por tanto, que es necesario que existan reservas adecuadas de fósforo en el suelo y que esas reservas puedan estar disponibles con facilidad. La mayoría de los suelos no abonados contienen una cantidad demasiado pequeña de fósforo, fácilmente aprovechable, para dar respuesta a la gran demanda de las cosechas, en especial durante ciertos periodos del ciclo de crecimiento. De ahí, que se imponga la necesidad de aplicar fertilizantes que contengan fósforo.

La carencia de fósforo afecta no solo al crecimiento de la planta y al desarrollo y rendimiento de la cosecha, sino también a la calidad del fruto y a la formación de las semillas. Asimismo, la carencia de fósforo puede retrasar la maduración de las cosechas, con lo que se retrasa la recolección y se pone en riesgo la calidad del producto.

Explanation:

What are Hox genes?
A. genes that can produce large changes in adult animals during the embryological development
B. genes that are most often used to calculate a molecular clock
C. genes that have never gone through the process of crossing over
D. duplicate genes that are always responsible for speciation

Answers

Answer:

Explanation:

I haven't heard of them

Answer:

Explanation:

Hox genes encode and correct positions of body structures making sure they form in the correct places in the body.

What are some agents of mutation that can affect the genes of humans? (Choose all that apply)
failure of repair by ligase

codon errors

poor nutrition

ionizing radiation

Answers

Answer: The correct answers are "ionizing radiation", "codon errors" and "failure of repair by ligase"

Explanation:

I took the test

Some agents of mutation that can affect the genes of humans are ionizing radiation and codon errors as well as failure of repair by ligase.

What is genetics?

Genetics has been known as the study of the heredity as well as the variation of the inherited the characters and the genetic properties and the organism's feature and the characteristics. It has been also known as the branch of biology that has to deal with the study of genetic variation, genes, and the heredity in the organisms.

The main function of the DNA has to carry the information from one generation to the another generation this has been the reason due to which DNA has been also known information molecule.

The main function of mRNA has to work as the immedieter between the protein and DNA which has been utilised by ribosome for the process of direct synthesis of protein, and the function of tRNA has to carry the accurate amino acid to the proteins synthesis site which takes place in ribosome.

Therefore, Some agents of mutation that can affect the genes of humans are ionizing radiation and codon errors as well as failure of repair by ligase.

Learn more about genetics on:

https://brainly.com/question/12985618

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Which of the following are associated with the integumentary system?
a. helps support the body
b. encloses internal body structures
c. site of many sensory receptors
d. melanin production

Answers

Answer:

melanin production

Explanation:

it occurs in the hair or skin

D

The integumentary system consists of the skin, hair, nails, glands, and nerves.

How would you define informed consent?
[Type answer here]

Answers

Informed consent is permission granted in the knowledge of the possible consequences, typically that which is given by a patient to a doctor for treatment with full knowledge of the possible risks and benefits.

Green anoles predominantly thrived on the full of greenery and less competitive island and have developed shorter legs and bigger bodies, while brown, long-legged, small-bodied anoles thrived on the treeless and competitive mainland. Scientists hypothesized that speciation (2 new species) occurred. Explain how that happened using evidence provided and what you know about speciation.

Answers

Answer:

Anolis is involved in the two green and brown species of anole speciation processes. Speciation is the process caused by evolution that results in the development of collective genetic changes during a period of time due to adaption or geological or environmental conditions.

The evolution of these two species is due to the difference of the niche or geological difference likewise here the niches of both green and brown Anoles among species in relative size as well as color and pattern.

How is passive transport different from active transport?

A) Passive transport is substances moving from HIGH concentration to LOW concentration.
B) Passive transport requires energy input.
C)Passive transport happens regardless of concentration gradient.
D) Passive transport is substances moving from LOW concentration to HIGH concentration.

ASAP

Answer:

gene found in the Dna its in the nucleus

Why is dissolving salt in water a physical change?

Answers

Dissolving a solid in liquid, such as table salt in water, is a physical change because only the state of the matter has changed. Physical changes can often be reversed. Allowing the water to evaporate will return the salt to a solid state. ... It has not combined with the water to cause a chemical reaction.

Answer:

Answer:

false

Explanation:

What are the two factors that ultimately decide what organisms can live in an area?

1 temperature and oxygen

2food and water

3food and oxygen

4water and oxygen

5water and temperature

Answers

Answer: 2. Food and water

Explanation: Good luck! :D

Yalll are smart right well I am give you 50 POINT lol you have to do this correctly :3

Answers

Answer:

Top to bottom: 5, 3, 2, 4, 1

Explanation:

I'll take a shot! Here I go!

5 (Sun) = top; we get all our energy from the sun

Then 3 (plants); plants can convert sunlight into food for themselves via photosynthesis

Then 2; we're talking about herbivores that eat plants, right?

Then 4; these are probably~ carnivores

Then 1; when a living thing dies, these guys consume the corpse and return the energy to the ecosystem

Have a great day!

Answer:

Sun

Primary Producers

Primary Consumers

Secondary Consumers

Decomposers

Explanation:

Energy coming from the sun is converted into chemical energy (or glucose) by plants. Primary consumers (herbivores) eat those plants and gain the energy they produced. Secondary consumers (carnivores probably) eat the primary consumers and gain that energy. Then they die and decomposers (fungi) return their energy into the soil.

which of these presents ab ethical issue associated with genetic testing on humans?

Answers

Answer:

In health care, genetic testing presents several ethical challenges. Legislation is in place or is being developed to limit access to genetic information, so that employers or insurers cannot discriminate against individuals because of their genotypes.

Explanation:

Answer:

The answer choices were:

Explanation:

A. Genetic testing could cause harmful mutations.

B. Genetic testing could improve the diagnosis of disease.

C. Genetic testing could cause job discrimination by revealing health risks.

D. Genetic testing could cause ecosystem damage by accelerating evolution.

Other Questions

HELP PLEASE!!!!!!Parallel lines r and s are cut by two transversals, parallel lines t and u.How many angles are alternate exterior angles with angle 5?Picture below: A(n) _____ is created when the parties involved have knowingly and intentionally agreed on the promises and performances. PlastiPharm produces a foundational product that sits on a shelf until it is needed and added to another product. In reviewing the process of combining the two products, the production staff realized that the foundational products are sometimes not tested, although the final product is always tested. They determined that all the foundational products will now undergo testing. The additional testing will add time and effort, which translates to additional costs, so why would PlastiPharm want to perform the additional testing?a.The additional testing helps the company as it strives for perfection in its products and helps avoid future problems by reducing waste (defective parts).b.Making sure that all parts are tested ensures that the company is ready to respond to last-minute orders.c.The additional testing will help the company meet customer demands for certification that all their products have been tested 100 percent of the time.d.Testing all the parts addresses any questions that customers might have about quality or performance of materials. HELP ME PLEASEEEPart ATo begin, either select a topic from previous lessons in this unit orchoose a new topic of interest. Write the topic you have selected.Tip: If you haven't already selected a topic, consider these suggestionsfor choosing a topic. 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In the meantime, the police had begun questioning the defendant. Although he never told the police to stop the questioning, his answers were at first vague or clearly unresponsive. During the course of the questioning, the family attorney phoned the station and told the police that she had been hired to represent the defendant and would be there in half an hour. The police did not inform the defendant of the attorney's call. Ten minutes later, the defendant admitted to committing the burglary, and signed a statement to that effect prepared by the police. The attorney arrived a few minutes later and advised the defendant to remain silent, but he told her that he had already signed a confession. How should the court rule on the attorney's pretrial motion to exclude the confession as evidence at trial What is the setting of the play (time period and place)? how does it create problems for the characters? The bearing from the Pine Knob fire tower to the Colt Station fire tower is N 65 E, and the two towers are 31 kilometers apart. A fire spotted by rangers in each tower has a bearing of N 80 E from the Pine Knob and S 70 E from Colt Station (see figure). Find the distance of the fire from each tower. (Round your answers to two decimal places.)From Pine Knob: Determine the domain and range of the following and show/explain your work.5 y = - x^4 + 4 Provide a graph to verify your answer.6 y = 2x^3 - 1 Provide a graph to verify your answer.7 y = 3(2x+8) Provide a graph to verify your answer. Find the unknown angle60X30 Which characteristics are typically incorporated into the details of a home-rule charter? White moths were found in huge numbers in the english city of birmingham. these moths could be easily camouflaged by the trees because white lichen covered the bark. because of sudden industrial development, the citys trees became covered with soot. how will this change affect the population of the white moth? a. the population will decrease. b. the population will increase. c. there will be no change in their population. d. the population will change their food preferences. Please someone help me with question a) and b). Ive been having so much trouble with these types of questions. The booklet says that the answers are a) 134degrees and b) 14.3km. I just dont get how to get there. Thank you! 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Suppose Mai places $3500 in an account that pays 19% interest compounded each year.Assume that no withdrawals are made from the account.Follow the instructions below. Do not do any rounding.(a) Find the amount in the account at the end of 1 year.S(b) Find the amount in the account at the end of 2 years. Consider the following code segment: if(!somethingIsTrue()) return false; else return true; } Which one of the following statements would be an accurate replacement for this code